Browse Standards
1686+ standards in database
1686 result(s) found
彩色电视图象传输标准
Standard of colour TV image transmission
传真测试样张
Test chart for facsimile transmission
模拟微波接力通信系统网路接口基本技术要求
Technical requirements for network interface for the analogue microwave relay communication systems
转盘噪声测试唱片
Rumble measurement test record
抖晃度测试唱片
Wow and flutter test record
循迹能力、声道分隔度测试唱片
Tracking ability and channel separation test record
电话自动交换网铃流和信号音
Ringing and tone for telephone automatic switching network
电话自动交换网用户信号方式
Subscriber line signalling system for telephone automatic switching network
电话自动交换网多频记发器信号方式
Multifrequency register signalling system for telephone automatic switching network
模拟载波通信系统网路接口参数
Parameters of interface for the analogue carrier systems over the network
电信传输单位 分贝
Telecommunication transmission unit--Decibel
非平衡双流接口电路的电特性
Electrical characteristics for unbalanced double-current interchange circuits
标准调音频率
Standard tuning frequency
电视视频通道测试方法
Methods of measurement of television video channel
测量视频连续随机杂波用的统一加权网络
Unified weighting network for measuring video continuous random noise
通信设备产品包装通用技术条件
General specifications for products packaging of communication equipments
大容量长距离模拟微波通信干线电话传输干扰容限
Telephone transmission interference allowances for long-distance high-capacity analogue microwave communication systems
脉冲编码调制通信系统系列
Pulse code modulation communication system hierarchy
调频广播发射机技术参数和测量方法 立体声带附加信道
Technical parameters and measuring methods for FM stereophonic broadcasting transmitters with supplementary channel
调频广播发射机技术参数和测量方法 单声和立体声
Technical parameters and measuring methods for FM broadcasting transmitters--Monophonic and stereophonic